/*
 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OPENSSL_COMP_H
#define OPENSSL_COMP_H
#pragma once

#include <openssl/macros.h>
#ifndef OPENSSL_NO_DEPRECATED_3_0
#define HEADER_COMP_H
#endif

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_COMP
#include <openssl/comperr.h>
#include <openssl/crypto.h>
#ifdef __cplusplus
extern "C"
{
#endif

    COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
    const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx);
    int COMP_CTX_get_type(const COMP_CTX *comp);
    int COMP_get_type(const COMP_METHOD *meth);
    const char *COMP_get_name(const COMP_METHOD *meth);
    void COMP_CTX_free(COMP_CTX *ctx);

    int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen, unsigned char *in,
                            int ilen);
    int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen, unsigned char *in, int ilen);

    COMP_METHOD *COMP_zlib(void);
    COMP_METHOD *COMP_zlib_oneshot(void);
    COMP_METHOD *COMP_brotli(void);
    COMP_METHOD *COMP_brotli_oneshot(void);
    COMP_METHOD *COMP_zstd(void);
    COMP_METHOD *COMP_zstd_oneshot(void);

#ifndef OPENSSL_NO_DEPRECATED_1_1_0
#define COMP_zlib_cleanup() \
    while (0) continue
#endif

#ifdef OPENSSL_BIO_H
    const BIO_METHOD *BIO_f_zlib(void);
    const BIO_METHOD *BIO_f_brotli(void);
    const BIO_METHOD *BIO_f_zstd(void);
#endif

#ifdef __cplusplus
}
#endif
#endif
#endif
